Question

我是编程新手，现在正尝试做一个应用程序。当我尝试制作一个Google登录按钮时，问题就出现了，当我认为我已经实现了这一点时，我尝试了模拟器，点击它们时我的按钮都没有工作，甚至没有文字方块。然后模拟器开始崩溃，代码为Thread 1：SIGABRT。我在某个地方读到你可以做一个执行断点，看看问题出在哪里，当我这样做的时候，我来到了一些线路上，其中一个就是线程1：断点3.1。

import UIKit
import Google

class ViewController: UIViewController, GIDSignInUIDelegate {

    override func viewDidLoad() {
    super.viewDidLoad()

    GIDSignIn.sharedInstance().uiDelegate = self


    // Do any additional setup after loading the view, typically from a nib.

}


override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()

    // Dispose of any resources that can be recreated.
}
@IBOutlet weak var signinbutton3: GIDSignInButton!

@IBOutlet weak var signinbutton: GIDSignInButton!

func signInWillDispatch(signIn: GIDSignIn!, error: NSError!) {

}

// Present a view that prompts the user to sign in with Google
func signIn(signIn: GIDSignIn!,
            presentViewController viewController: UIViewController!) {
    self.present(viewController, animated: true, completion: nil)

    print("Sign in presented")
}

// Dismiss the "Sign in with Google" view
func signIn(signIn: GIDSignIn!,
            dismissViewController viewController: UIViewController!) {
    self.dismiss(animated: true, completion: nil)
    print("Sign in dismissed")
}



override func viewDidAppear(_ animated: Bool) {
    self.performSegue(withIdentifier: "loginView", sender: self); //this line is where the Thread 1: Breakpoint 3.1 was.


}

}

我的问题很快：

- 模拟器上的按钮不起作用

- 模拟器崩溃并在xcode上显示我之前显示的代码序列，其中的最后一行是Thread 1：SIGABRT和Thread 1：Breakpoint 3.1。

您认为问题是什么？我应该如何解决？的修改我在尝试启动模拟器时接受了这个：

objc [22047]：类PLBuildVersion在两者中实现   /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices   （0x113a45cc0）和   /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices   （0x11385c6f0）。将使用两者之一。哪一个未定义。   2017-06-13 21：49：25.051 Startifyapp [22047]   [Firebase / Core] [I-COR000003]默认的Firebase应用尚未推出   配置。将[FIRApp configure]添加到应用程序初始化。   2017-06-13 21：49：26.013 Startifyapp [22047：788392] *终止应用   由于未被捕获的异常＆＃39; NSInvalidArgumentException＆＃39;，原因：   ＆＃39; Receiver（）没有segue   带有标识符＆＃39; loginView＆＃39;＆＃39;   * 第一次抛出调用堆栈：（0 CoreFoundation 0x000000010bf6eb0b exceptionPreprocess + 171 1 libobjc.A.dylib
  0x000000010d2ab141 objc_exception_throw + 48 2 UIKit
  0x000000010e00bef3 - [UIViewController   shouldPerformSegueWithIdentifier：sender：] + 0 3 Startifyapp
  0x000000010b971fbf    TFC11Startifyapp14ViewController13viewDidAppearfSbT + 127 4 Startifyapp 0x000000010b972021    TToFC11Startifyapp14ViewController13viewDidAppearfSbT + 49 5 UIKit 0x000000010e00ecae    - [UIViewController _setViewAppearState：isAnimating：] + 704 6 UIKit 0x000000010e00f6d4 - [UIViewController _endAppearanceTransition：] + 197     7 UIKit 0x000000010dfe1f94    - [UIPresentationController transitionDidFinish：] + 868 8 UIKit 0x000000010e1f6525 - [_ UICurrentContextPresentationController   transitionDidFinish：] + 44 9 UIKit
  0x000000010dfe5af6 __56- [UIPresentationController   runTransitionForCurrentState] _block_invoke_2 + 183 10 UIKit
  0x000000010e995d1c - [_ UIViewControllerTransitionContext   completeTransition：] + 102 11 UIKit
  0x000000010dfdeec0 - [UITransitionView notifyDidCompleteTransition：] +   251 12 UIKit 0x000000010dfdeb38    - [UITransitionView _didCompleteTransition：] + 1408 13 UIKit 0x000000010dfe1208 - [UITransitionView _transitionDidStop：finished：] +   104 14 UIKit 0x000000010def2257    - [UIViewAnimationState sendDelegateAnimationDidStop：finished：] + 222 15 UIKit 0x000000010def2796    - [UIViewAnimationState animationDidStop：finished：] + 136 16 QuartzCore 0x00000001151a968e   _ZN2CA5Layer23run_animation_callbacksEPv + 306 17 libdispatch.dylib 0x00000001100f305c _dispatch_client_callout + 8 18 libdispatch.dylib   0x00000001100d440b _dispatch_main_queue_callback_4CF + 411 19   CoreFoundation 0x000000010bf33909   __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 9 20 CoreFoundation 0x000000010bef9ae4 __CFRunLoopRun   + 2164 21 CoreFoundation 0x000000010bef9016 CFRunLoopRunSpecific + 406 22图形服务
  0x0000000111775a24 GSEventRunModal + 62 23 UIKit
  0x000000010de66134 UIApplicationMain + 159 24 Startifyapp
  0x000000010b9700d7 main + 55 25 libdyld.dylib
  0x000000011013f65d start + 1 26 ???   0x0000000000000001 0x0 + 1）libc ++ abi.dylib：终止于   NSException（lldb）
类型的未捕获异常

Answer 1

我对Xcode 9和模拟器有同样的问题。我使用了iOS 11的真实设备，它工作正常（但有一些错误）

在模拟器上运行应用程序时，它崩溃并说出线程1：断点3.1。我该怎么办？

1 个答案: